Seasonality in Algal Assemblages on Upwelling-influenced Coral Reefs in the Colombian Caribbean

Díaz-Pulido, Guillermo; Garzón-Ferreira, Jaime

doi:10.1515/bot.2002.028

Cited by 100 publications

(94 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…October) than in the dry, upwelling season (e.g. April) at the study site, while at the TNNP macroalgal communities from coral reefs (Díaz-Pulido and Garzón-Ferreira, 2002), sand plains (Bula-Meyer, 2001) and sea grass beds (Rangel, 2005), are more diverse during the dry, upwelling season. This illustrates the large variability in the dynamics of algal communities in the Colombian Caribbean region.…”

Section: Discussionmentioning

confidence: 78%

“…Most information available on macroalgal communities of the area has focused on spatial patterns of organization (Guillot and Márquez, 1978;Brattström, 1980;Márquez and Guillot, 1983;. Seasonal variations in algal communities in Colombia have been documented for coral reefs (Díaz-Pulido and Garzón-Ferreira, 2002) and rocky intertidals (García, 1992;Nuñez et al 1999). However, changes at larger temporal scales (e.g.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Dynamics of a Macroalgal Rocky Intertidal Community in the Colombian Caribbean

García

Pulido

2016

BIM

View full text Add to dashboard Cite

The macroalgal intertidal community at a tropical location (Punta de la Loma, Colombian Caribbean) was monitored at irregular intervals from 1992 to 1995. The highly diverse macroalgal community was relatively invariant in cover, taxa and biomass from small spatial scales (square centimeters). At larger spatial scales (square meters), however, there was a small but definitive seasonal pulse in dominance and composition. Sand intrusions over the rocky intertidal represents a strong disturbance reducing macroalgal cover during the dry season. Interannual variation was also detected. La Punta de la Loma appears to be influenced by the regional upwelling conditions. KEY WORDS: Dynamics, Macroalgal landscape, Intertidal, Colombian Caribbean. RESUMENDinámica de una comunidad macroalgal del intermareal rocoso en el Caribe colombiano. La comunidad macroalgal intermareal en una localidad tropical (La Punta de la Loma, Caribe colombiano), fue monitoreado a intervalos irregulares entre 1992 y 1995. La altamente diversa comunidad macroalgal presentó pocos cambios en cobertura, número de taxa y biomasa a la escala espacial de los cuadrantes (centímetros cuadrados). Sin embargo, a la escala espacial del paisaje (metros cuadrados) se detectó un pulso estacional en dominancia y composición, pequeño pero definido. Invasiones parciales de arena en la época seca constituyen fuertes eventos de perturbación que reducen la cobertura macroalgal. También se detectó variación interanual.La Punta de la Loma parece estar sujeta a las condiciones locales de surgencia.

show abstract

Section: Discussionmentioning

confidence: 78%

Section: Introductionmentioning

confidence: 99%

Dynamics of a Macroalgal Rocky Intertidal Community in the Colombian Caribbean

García

Pulido

2016

BIM

View full text Add to dashboard Cite

show abstract

“…In each region, an upwelling area and a neighbouring non-upwelling area that contained coral communities were delineated. Reefs subjected to seasonal upwelling were first located based on previous research (Glynn 1993, Díaz-Pulido & Garzón-Ferreira 2002, McClanahan et al 2009 Fig. 1).…”

Section: Methodsmentioning

confidence: 99%

Upwelling areas do not guarantee refuge for coral reefs in a warming ocean

Chollett

Mumby²,

Cortés³

2010

Mar. Ecol. Prog. Ser.

View full text Add to dashboard Cite

Global warming is a severe threat to coral reefs. It has been proposed that upwelling could minimise the thermal stress caused by ocean warming, and therefore upwelling areas may serve as a refuge for corals. Here, using 21 yr of satellite sea surface temperature data, we analysed the degree to which the thermal stress experienced by corals is reduced in 4 seasonal upwelling areas with reef development: Colombia in the southern Caribbean, Panama in the eastern tropical Pacific, Oman in the Arabian Sea and Madagascar in the Indian Ocean. Upwelling areas do not always offer protection from thermal stress. When compared with nearby non-upwelling areas, upwelling can only provide defence against warming events if: (1) the threat and the upwelling coincide, and (2) this overlap produces a meaningful decrease in thermal stress in upwelling areas. These conditions were met in only 2 of the 4 upwelling areas analysed: Colombia and Oman. In Oman, upwelling decreased the magnitude, frequency and duration of thermal disturbances (identified when Coral Bleaching HotSpots, anomalies exceeding the average temperature of the warmest month, are larger than 1°C), while in Colombia upwelling only decreased their frequency. The protective role of upwelling seems to be limited geographically; therefore, further upwelling areas need to be assessed individually in order to evaluate their capacity as a refuge from thermal stress.

show abstract

“…Relations between temporal variations in algal cover and environmental factors are even scarcer for Colombia. Seasonal changes in algal abundance on continental reefs were associated with seawater temperature (Diaz-Pulido & Garzón-Ferreira 2002). Consequently, it is critical to investigate the processes regulating algal abundance in monitoring reefs in order to explain the trends and, most importantly their role in reef dynamics.…”

Section: Recent Dynamicsmentioning

confidence: 99%

Recent dynamics and condition of coral reefs in the Colombian Caribbean

Rodríguez-Ramírez

Reyes-Nivia

Zea

et al. 2015

RBT

View full text Add to dashboard Cite

Long-term monitoring data provide a basis to recognize changes in coral reef communities and to implement appropriate management strategies. Unfortunately, coral reef dynamics have been poorly documented at any temporal scale in the Southern Caribbean. Through the "National Monitoring System of Coral Reefs in Colombia" (Spanish acronym: SIMAC), we assessed 32 permanent plots at different depth levels in six reefs areas of the Colombian Caribbean from 1998 to 2004. Temporal trends in coral and algal cover were evaluated by repeated measures ANOVA. The model included the effect of depth levels (a fixed effect), monitoring plots (a random effect) as a nested factor within depths, and time (repeated factor). We found high spatial variability in major benthic components. Overall means indicated that algae were the most abundant biotic component in nearly all areas, ranging from 30.3% at Rosario to 53.3% at San Andrés. Live coral cover varied considerably from 10.1% at Santa Marta up to 43.5% at Urabá. Coral and algae cover per se are not always accurate reef indicators and therefore they need supplementary information. Temporal analyses suggested relative stability of coral and algal cover along the study but the causes for the observed trends were rarely identified. A significant decrease (p=0.042) in coral cover was only identified for some monitoring plots in Tayrona-time x plot (depth level) interaction, and importantly, few coral species explained this trend. Significant increase (p=0.005) in algal cover was observed over time for most plots in Rosario. Temporal trajectories in algal cover were influenced by depth-significant time x depth interaction-in San Andrés (increase, p=0.004) and Urabá (decrease, p=0.027). Algae trends were mainly explained by changes in algal turfs. Monitoring programs must focus on the mechanisms mediating the changes, in particular those concerning coral recovery and reef resilience in the current context of climate change. Rev. Biol. Trop. 58 (Suppl. 1): 107-131. Epub 2010 May 01.

show abstract

Seasonality in Algal Assemblages on Upwelling-influenced Coral Reefs in the Colombian Caribbean

Cited by 100 publications

References 28 publications

Dynamics of a Macroalgal Rocky Intertidal Community in the Colombian Caribbean

Dynamics of a Macroalgal Rocky Intertidal Community in the Colombian Caribbean

Upwelling areas do not guarantee refuge for coral reefs in a warming ocean

Recent dynamics and condition of coral reefs in the Colombian Caribbean

Contact Info

Product

Resources

About